Task chair



FIG. 1 is a perspective view of a task chair, looking toward the right front corner, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines showing of the base of the chair are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a task chair, as shown and described. 